ICAS Assessment — Questions and Answers

Question 1: In the sentence 'She wore a small old gray wool hat,' which is the correct order of adjective types used?

age, size, material, color
color, age, size, material
material, color, size, age
size, age, color, material (Correct answer)

Correct answer: size, age, color, material

English adjectives follow the order: size (small), age (old), color (gray), material (wool) before the noun.

Question 2: A cylinder has a radius of 5 cm and a height of 10 cm. Using π ≈ 3.14, what is its volume?

785 cm³ (Correct answer)
250 cm³
1570 cm³
314 cm³

Correct answer: 785 cm³

Volume = π × r² × h = 3.14 × 25 × 10 = 785 cm³.

Question 3: Which shape has three sides?

Square
Triangle (Correct answer)
Circle
Rectangle

Correct answer: Triangle

A triangle is a fundamental geometric shape defined by having exactly three straight sides and three angles. Its name, 'tri-angle,' directly indicates its characteristic of having three angles and, consequently, three sides. Other common shapes like squares and rectangles have four sides, while a circle has no straight sides.

Question 4: Which word is the verb in the sentence: 'The bird sings beautifully in the morning'?

sings (Correct answer)
beautifully
bird
morning

Correct answer: sings

'Sings' is the verb because it describes the action being performed by the subject, 'bird.'

Question 5: Which type of figurative language is used in 'Life is a roller coaster'?

Onomatopoeia
Personification
Simile
Metaphor (Correct answer)

Correct answer: Metaphor

A metaphor directly states that one thing is another, without using 'like' or 'as.'

Question 6: Which data type would BEST store the value 3.14159?

Float (decimal) (Correct answer)
Boolean
Integer
Character

Correct answer: Float (decimal)

A float (floating-point) data type stores numbers with decimal points, making it appropriate for values like 3.14159.

Question 7: What is 15% of 240?

36 (Correct answer)
45
30
40

Correct answer: 36

15% of 240 = 0.15 × 240 = 36.

Question 8: A student leaves a damp cloth on a windowsill in sunlight. After an hour, the cloth is dry. Which process best explains this?

Sublimation
Precipitation
Evaporation (Correct answer)
Condensation

Correct answer: Evaporation

Evaporation occurs when liquid water absorbs heat energy and changes into water vapor, drying the cloth.

Question 9: Which correctly spells the past tense of 'carry'?

caryed
carried (Correct answer)
caried
carryed

Correct answer: carried

When adding '-ed' to a verb ending in 'y' preceded by a consonant, change 'y' to 'i': 'carried'.

Question 10: What is the meaning of the idiom 'bite the bullet'?

To face a painful situation bravely (Correct answer)
To argue aggressively
To eat quickly
To make a rash decision

Correct answer: To face a painful situation bravely

'Bite the bullet' means to endure a painful or difficult situation with courage.

Question 11: A webpage link that no longer works is commonly called a:

Live link
Hypertext
Cookie
Broken or dead link (Correct answer)

Correct answer: Broken or dead link

A broken (dead) link is a hyperlink that points to a resource that no longer exists or has moved.

Question 12: Which of the following is a solution to 2x + 3 = 11?

x = 4 (Correct answer)
x = 3
x = 5
x = 7

Correct answer: x = 4

2(4) + 3 = 8 + 3 = 11, so x = 4 is the solution.

Question 13: What does a 'while' loop do in programming?

Stores a value in memory
Repeats code as long as a condition is true (Correct answer)
Defines a function
Runs code a fixed number of times

Correct answer: Repeats code as long as a condition is true

A while loop repeatedly executes its block of code as long as the specified condition remains true.

Question 14: Which sentence uses the word 'affect' correctly?

What affect did the news have?
The rain will affect our plans. (Correct answer)
The medication had no affect.
The rain will have an affect on us.

Correct answer: The rain will affect our plans.

'Affect' is a verb meaning to influence, while 'effect' is the noun form.

Question 15: Which of the following is true about an array in programming?

It can only store one value
It stores multiple values of the same type under one name (Correct answer)
It defines a new function
It is a type of loop

Correct answer: It stores multiple values of the same type under one name

An array is a data structure that holds multiple values, typically of the same type, accessible by an index.

Question 16: What does it mean to 'make a prediction' while reading?

Summarizing what you have read so far
Using clues in the text to guess what might happen next (Correct answer)
Looking up facts mentioned in the text
Identifying the main character in the story

Correct answer: Using clues in the text to guess what might happen next

Making a prediction means using evidence from the text to form a reasonable guess about future events.

Question 17: Which is the correctly spelled superlative form of 'good'?

goodest
best (Correct answer)
bestest
gooder

Correct answer: best

'Good' is an irregular adjective whose superlative form is 'best', not formed by adding '-est'.

Question 18: What is the primary cause of seasonal changes in temperature experienced in the United States?

The tilt of Earth's axis relative to its orbit (Correct answer)
Changes in the Sun's energy output
Cloud cover patterns throughout the year
Earth's changing distance from the Sun

Correct answer: The tilt of Earth's axis relative to its orbit

Earth's axial tilt of about 23.5° causes different hemispheres to receive more direct sunlight at different times of year, creating seasons.

Question 19: What is 10 more than 87?

97 (Correct answer)
96
95
98

Correct answer: 97

To find 10 more than 87, you perform an addition operation: 87 + 10. Adding 10 to any number increases its tens digit by one, while the ones digit remains the same. In this specific case, 8 tens plus 1 ten equals 9 tens, resulting in a total of 97.

Question 20: Which of the following is an example of using 'anecdote' in a persuasive essay?

Citing a government report on pollution levels
Sharing a brief personal story to illustrate why stricter road safety laws are needed (Correct answer)
Quoting a scientist's research findings
Listing statistics about traffic accidents

Correct answer: Sharing a brief personal story to illustrate why stricter road safety laws are needed

An anecdote is a short personal story used in persuasive writing to make abstract arguments concrete and emotionally engaging.

Question 21: What is the product of 4 × 6?

26
22
24 (Correct answer)
20

Correct answer: 24

The product of two numbers refers to the result obtained when they are multiplied together. Multiplying 4 by 6 means adding 4 to itself 6 times (4 + 4 + 4 + 4 + 4 + 4) or adding 6 to itself 4 times (6 + 6 + 6 + 6). Both calculations yield the sum of 24.

Question 22: A poem contains the line: 'The wind whispered secrets through the trees.' What literary device is this?

Rhyme
Personification (Correct answer)
Hyperbole
Onomatopoeia

Correct answer: Personification

Giving the wind a human action—'whispered secrets'—is personification.

Question 23: Read the following passage: 'The solar-powered car, named 'SunChaser,' completed its journey across the continent, arriving to cheers in Sydney. The team, comprised of university students, faced numerous challenges, including overcast skies and a battery malfunction. However, their innovative design, which maximized energy absorption even in low light, proved successful.' What is the primary purpose of this passage?

To entertain the reader with a dramatic story of a race.
To persuade readers to invest in solar technology.
To describe the technical specifications of the 'SunChaser'.
To inform the reader about the successful completion of a challenging journey. (Correct answer)

Correct answer: To inform the reader about the successful completion of a challenging journey.

The passage focuses on conveying factual information about the 'SunChaser's' journey, its challenges, and its ultimate success. While it mentions innovative design, it doesn't provide detailed technical specifications. It doesn't ask the reader for any action (like investing), nor is its primary goal to entertain with a dramatic narrative. Therefore, its main purpose is to inform.

Question 24: A magnet is brought near a pile of mixed sand and iron filings. What will happen?

Neither material is attracted
Only the sand is attracted
Both sand and iron filings are attracted
Only the iron filings are attracted (Correct answer)

Correct answer: Only the iron filings are attracted

Magnets attract ferromagnetic materials like iron, but have no effect on non-magnetic materials like sand.

Question 25: What does 'resolution' refer to when describing a digital image?

The file size in kilobytes
The number of pixels in the image (Correct answer)
The color palette used
The speed at which it loads

Correct answer: The number of pixels in the image

Image resolution refers to the number of pixels (picture elements) in an image, often expressed as width × height (e.g., 1920×1080).

Question 26: A Venn diagram compares mammals and birds. The overlapping section contains 'warm-blooded.' What does the overlapping section represent?

Traits shared by both groups (Correct answer)
Traits unique to mammals only
Traits found in neither group
Traits unique to birds only

Correct answer: Traits shared by both groups

The overlapping section of a Venn diagram always represents characteristics shared by both groups.

Question 27: What is the output of: 5 + 3 * 2 in most programming languages?

10
11 (Correct answer)
16
13

Correct answer: 11

Due to operator precedence, multiplication is performed before addition: 3 × 2 = 6, then 5 + 6 = 11.

Question 28: Which planet is known as the Red Planet?

Earth
Jupiter
Mars (Correct answer)
Venus

Correct answer: Mars

Mars is famously known as the Red Planet due to the abundance of iron oxide, commonly known as rust, on its surface. This reddish hue is a distinctive characteristic that makes it easily identifiable among the planets in our solar system.

Question 29: What is the value of 3² + 4²?

7
14
49
25 (Correct answer)

Correct answer: 25

3² = 9 and 4² = 16, so 9 + 16 = 25.

Question 30: What kind of fault occurs when rocks on one side are pushed up and over rocks on the other side due to compressional forces?

Strike-slip fault
Lateral fault
Reverse (thrust) fault (Correct answer)
Normal fault

Correct answer: Reverse (thrust) fault

Reverse or thrust faults form under compression, causing one block to ride up over another and commonly creating mountain ranges.

Question 31: Which word is formed correctly by adding '-ness' to 'happy'?

happyness
happines
hapiness
happiness (Correct answer)

Correct answer: happiness

When adding '-ness' to a word ending in 'y', change the 'y' to 'i': 'happy' → 'happiness'.

Question 32: What does 'RAM' stand for?

Rapid Arithmetic Module
Real-time Application Memory
Random Access Memory (Correct answer)
Read-Access Memory

Correct answer: Random Access Memory

RAM stands for Random Access Memory, which temporarily stores data that the CPU is actively using.

Question 33: Which word correctly adds the prefix 'un-' without changing the root word?

unnecessary (Correct answer)
unecesary
unnecessery
unnecesary

Correct answer: unnecessary

Adding 'un-' to 'necessary' simply attaches the prefix without changing any letters: 'unnecessary'.

Question 34: Which tool helps create presentations?

Excel
Notepad (Correct answer)
Paint
PowerPoint

Correct answer: Notepad

Notepad is a basic text editor that allows users to create and edit plain text files. While not a dedicated presentation software, it can be used to draft the textual content, outlines, or scripts for a presentation. The raw text created in Notepad can then be imported or copied into more sophisticated presentation tools for formatting and visual design, making it a foundational step.

Question 35: A frequency table shows how many students scored in each grade range on a science test. The 70–79 range has the highest frequency. What does this mean?

Most students scored between 70 and 79 (Correct answer)
The test was too easy
Most students failed the test
No student scored above 79

Correct answer: Most students scored between 70 and 79

Highest frequency in the 70–79 range means more students scored there than in any other range.

Question 36: What does 'predict' mean?

Forget
Explain
Describe
Guess the future (Correct answer)

Correct answer: Guess the future

To 'predict' means to say or estimate that a specified thing will happen in the future or will be a consequence of something. It involves making a forecast or a prophecy about what is to come. Therefore, 'guess the future' accurately captures the essence of prediction.

Question 37: The formula for the perimeter of a rectangle is P = 2(l + w), where l is the length and w is the width. A rectangular garden has a perimeter of 30 meters and a length of 9 meters. What is its width?

21 meters
6 meters (Correct answer)
12 meters
15 meters

Correct answer: 6 meters

We are given the formula P = 2(l + w) and the values P = 30 and l = 9. We need to find w. Substitute the known values into the formula: 30 = 2(9 + w). First, divide both sides by 2: 30 / 2 = 9 + w, which simplifies to 15 = 9 + w. To find w, subtract 9 from both sides: 15 - 9 = w. This gives w = 6 meters.

Question 38: Which gas do humans exhale in greater amounts compared to what they inhale?

Argon
Nitrogen
Oxygen
Carbon dioxide (Correct answer)

Correct answer: Carbon dioxide

During cellular respiration, the body converts oxygen and glucose into energy, releasing carbon dioxide as a waste product that is exhaled.

Question 39: What does the root word 'aud' mean in words like 'audible' and 'audience'?

Hear (Correct answer)
Speak
See
Touch

Correct answer: Hear

The Latin root 'aud' means to hear, which is why 'audible' means able to be heard.

Question 40: The passage says: 'The population of the town swelled during the summer festival.' What does 'swelled' mean in this context?

Moved to a different location
Decreased significantly
Became injured or sore
Grew larger in number (Correct answer)

Correct answer: Grew larger in number

In this context, 'swelled' means increased or grew, referring to more people coming to the town.

ICAS Assessment

The ICAS (International Competitions and Assessments for Schools) is an academic competition developed by UNSW Global that evaluates students across English, Mathematics, Science, Digital Technologies, and Writing through higher-order thinking questions.

Questions

60 min

Time Limit

50%

To Pass

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